Stock holder for printing presses



Feb. 1 7. 19.25.

C. H. MARTIN STOCK HOLDER FOR PRINTING PRESSES Filed May 8, 1925INVENTOR.

14 ATTORNEY Patented Feb. 17, 1925.

U ED A T E CHARDES= HUGH MMLARTIN, -O'F"LO'SL-ANGELES, GALIFQRNIA ASSIGNOR OF:ONE-HALF TO ARTHUR F5 LARR'ABEE, LOS ANGELES; CA3EI ?OIEEN'IA;

STOGK-HOLDEB FOR PRINTING ERESSES.

Application fileaivray'e," 1923." seriarno'; 637,419;

To all 'w/z om it 11mg concern:

Be it known 'th'atI; Glizxntns IIUGII ll fim TIN, a citizen of the'Unitechstates; residing at Los Angeles; in the connty'of Iios'An- 5ge'les -and State otCalifo'rni'a, have invented" ing'fPresses; of whichthe followingfis a' specification." P

This "im ention" relates to means adapted to 'lio'ld- 'stacks ofenvelopes; cards,- andsmall sheets against the barrier of a printingpress," to which such thin filit' ohj sets are fed by a pnen'm'a'ticfeeder.

Heretofo're the stockholders for suclrthin (lat objects have" beensecured "to the" print"- ing press table an d are arranged to apply asli ghtedgewise pressure on theohjects to hold them toward the barrier,and it has been necessarytorelease and movethesam'e" away fromtheharrienin ordertdpermit a fresh su'pplyoi?stdck to he 'placed'inposition to be picked up by the pneumatic suck er;"and*after the supplyf'stock has been replenished; the stock holder" has "to I be" re turned"toward the barrier- 'a-nd:-- again be-se cared to the 'taoleso as tohold thestoc-k in position against snclfibarrierg as-a result,

thetension applied the sto'ck-"ho1derto p the "successive stacks ofst'ook is variableg' andthe feeding of sheets is irregdlar.

An object of this invent-ion is'to 'providef a stockholder whichcanbeeasilyadjust'ecl tohol'd the predetermined stocli and "can" beeasily"shiftedto" allow the" stock to here "plenishedfiand which can beinvariably re tnrnedto' the exact adjustment, so 'that the same degreeof pressure-"upon thestock will Another obj'ectis to so constrnbthstokzkholder that the supply ofsto'c'k on a printing press-stock table may bereplenished with greater facility and 'ease thanhereto fore.

Another object is to so; construct a stock cards may be ler press:

The invention may be variously constructed and comprises a simpleconstruction and printed npon a standard Milholder. that small stocksuch as Business also additionsto such simpleconstruction wherebycertain 'conditi onsaremet and em ices are performed which in amajority'jof' cases may not beinefiortaken care of-:-

Thisinvention isappliQabIe for usewith Whatiskno'wn "as theMillerautomatic plat en press feeder. Such feeders aii-eprovi'ded withlaterally adjustableside'posts to pr'event the stock from"heingdisplaced"laterally and such post's arepositionedashort distance;'abOUt tWO and "one-halfinches more or less from" the barrier: and it isnot 'piac' tica b le to bring sn'ch posts" close-"enough to gethertohold smal'lcardsorsheets; V'fo'ur or five" or less inches in length and111 oh ject'is toso-constinct the stdcljihfilder'that it can not only beusedalonen or the smallei" cardsor sheets, 'but can: also "heaisedinconjunction with the stock holdi'ng posts otthe'" Miller feederwh'ei'r'thecard's orsheets are ofa length to" whiclrtho''Millei"ffe'e(le'r"is adapted;

An object of the invention to" provide apneumatic platen 'press' feederwith adjnstahle stock positioning poststhat can be adin'sted toanydesired position-relative to the barrier, andthat'wilhafi'o'rd a support'foi" oneend and the rear 'edge o'fthe stack' of stock; and to makeprovision wl'i'eieby the stock can be supportedat'either onat both ofits rear corners, an'd any partor" all of such" supportcanbe-i1ista1itly movedout of the 'way and again i'eturnechto 'the setposition Without any danger of being onto't'iad' justment when returned:

Other objects, advantages and features of invention may appear from-theaccompanying (drawing, the snhjoined detail descrrption and theappendedclaims? v The accompanying drawing illustrates the invention insome of the forms I at present deem preferable.

Figure 1 isa perspective View ofa stock holder embodying this; inventionin nse'to hold small cards": a fragment of the print ing press stocktable and barrier therefoiF are shown.

Fig; 2 is a plan View ofiihe deVi'ceshown in Fig.- 1. Dotted linesindicate an' adj nst'ed position of theauxiliary holding-means, and dotanddash lines indicate an extended po sition=of the stock'holdi'ng arms;

Fig. 3 is a frag-mental elevation from theright of liigs. 1. andfiZ withthe stoc'lfiholding arms in the extended position indicated in dot anddash lines in Fig. 2, one of the stock retaining posts being partly insection.

Fig. 4 is an elevation partly in section on a plane indicated by line00*, Fig. :2, and showing another form of the stock retaining arms.

Fig. 5 is a plan view of a device embodying the features of theinvention as applied in simple form to a printing press, a fragment ofwhich is shown; dot and dash lines indicate a position of the stockholder arms extended.

Fig. 6 is a fragme-ntal plan view showing in detail the pivoted end ofthe auxiliary holding means detached from the stock engaging means.

Fig. 7 is a section on line 50 Fig. 6.

1 indicates any suitable standard printing press stock table having abarrier 2 at one side thereof and being provided with the usual bevelslot 3 in wh.ch the support at of the stock holder 5 is slidablymounted.

The stock holder 5 comprises a transverse member 6 fixed to the slidingsupport 4, and horizontally swinging arms 7 having at their free endsupwardly extending roughened posts 8, and pivotally connected to thetransverse member as at 9 by any suitable means such as vertical rivets10.

The posts 8 are shown as being transversely ridged and are secured tothe free ends of the arms 7 and are adapted to be swung horizontallyinto pos'tion to hold the stock, such as envelopes, or sheets, notshown, or the cards 11, against the barrier 2 and to affordsufficientresistance to uplift of the paper to prevent the second sheetfrom being sucked up by the first sheet when the first sheet is lifteddirectly by the sucker of the pneumatic feeder, not shown.

In Fig. 5, 12 indicates the usual adjustable stock posts or guides withwhich printing presses are commonly equipped to properly position thestock longitudinally on the table.

The horizontally swinging stock engaging means are held in and out ofstock-engaging position by means of a helical spring 13 connected at itsends to the arms 7 by spring attachment eccentric pins 14 that are fixedto the arms and movable in recesses 14 formed at the ends of thetransverse member 6, from one to the other of stops 15 and 16. ,Thestops 15 serve to stop the arms 7 when the stock engag'ng means are inposition to hold the stock against the bar rier 2, and the stops 16serve to hold the upright ridged 01' roughened posts 8 out of engagementwith and out of the way of the stock. It is thus seen that the pins 14and stops 15 form stop means to position the arms 7 in stock engagingposition, that is when the arms 7 are in stock engaging posi ton theposts 8 will engage the stock.

When either or both of the arms 7 are swung away from stock engagingposition the tension of spring 13 is increased, and after either pinpasses the dead center in either direction, the spring swings the pinalong the recess until the pin rests on a stop. Said dead centers arealined with the pivots 10so that the spring 13 will operate either armor both of the arms to continue the opening or closing operation as thecase may be, until either orboth the arms 7 and ridged or roughenedposts 8 attain either the position shown in solid lines or the positionindicated by dot and dash lines in Figs. 2 and 5. In said dot and dashposition the arms 7 are approximately parallel with the barrier 2 andare practically alined with the transverse member 6; and the supply ofstock may then be replenished without interfering with the stockengaging means.

The stops 16 on the transverse member 6 position the arms in extremeextended or retracted postion. After the supply of stock has beenreplenished the stock engag ing means may be returned to stock-engagingposition where it will without adjustment engage the stock with the samepres sure as before.

To adapt the device to business cards or other stock of such smalldimensions that the usual stock guides 12 cannot be adjusted closeenough together to engage such stock, I provide auxiliary stock engagingor positioning means comprising arms 17 and posts 18. The arms 17 aredetachably and pivotally connected to the arms 7 by means of screws 19threaded into the threaded apertures 20 in the arms 7. The screws 19 aretightened so that the arms 17 frictionally engage thearms 7, thus beingheld in adjusted position. The arms 17 respectivelyconform at their freeends to the periphery of the bases of the posts and are bent downward asat 21 to bring the under faces of the outer ends of the arms 17 flatupon the table so that a single sheet will be held and positioned aswell as any top sheet in a stack of sheets.

In order to facilitate attaching, adjusting, and detaching, theauxiliary stock positioning means relative to the arms 7, 1 provide thearms 17 with slots 17 that open at the inner or adjacent edges of thearms 17 and that are adapted to accommodate the bodies of the screws 19;and the closed ends of the slots are countersunk as at 17 so that whenthe arms 17 are applied to the otthe :ridge slightly smaller tham theoutside diameter of theposte faf so: that the coil will. beheld on thepost 8"byLfrictioniand mllafiordisaz corrugated 01w roughened s surface.for the. posts 1- findthat. the i'orm; shown. in Fig. 4 is: adapted for1 use on all kinds of r stock; but 1R is Y especially adapted forholding soft. 1 stock suchas blottersc The rounded edges of theaspringprevents =ch'ewving3 the edges; of L'the "soft stock by: the unyieldingridges iposts.

In practice th e size ofithe stock: to be. printed is predetermined; andassuming. that the stock is of suclr length i that the end guides12-1miy be used; such guides are positioned to A centerthe 'WVOlk andthen thestocli -holder 5' is so adjusted in the slot 3, relative -towthe-barrier-= 2, that vthe correct pressure is appliedto thestocwcontactingtherewith. The ,ist'oclr' holder 5 is maintained insuchposition by means ot-the screw. 22 'ope-rating through a hole in thevofiset 22 of the transverse member= ti and in one of the threadedaperturesin the support at, and tightening the screw =in the aperture fixes thesupport {in the slot 3;

Atter'the'initial supply of stock'has been exhausted; the stock engagingmeansmay be moved-- outwardly by an slight movement as bya flipof theoperatorsfingersbetween the posts 8, and thepinslet, on which the spring13 operates; is thereby moved pa-st alinement with the pivots -10; afterwhich the spring 13 operatesto retract the arms? "anduipright posts8*t0. the position indicated by dot and dash lines; Fig.2.

A new supply o'f stockimay then. be put in place-without interferenceotthe-posts 8 which" are then returned sons to extend from thetransverse member 6' toward the barrier to stocleengaging position. Uponreturn'of the stock engaging-ducting each ot-the posts 8 will-engage thestock edges witha pressure correspondingto that I with Which'it engagedthe preceding supply.

The threadsor ridges onthe posts 8 'contact with the rear edge of the'stoclras it islit'ted I upward by the usual pneumatic sucker; notshown, and effectively separatesthe indirectly lifted. sheet or sheetsof stock ti-Omthedirectly lifted sheet and thusinsuresthat only the onesheet'carried by the pneumatic sucker- Will'be lifted from the supply ofstock.

When the stock is of such dimensions that the stockguides 12 cannotbebrought close enough together to operate eiiectively, the auxiliarystock engaging means issecured to the arm-7 by the screws-19z and thearms 18 are positioned to engagethe lateral edges of the stoclr'toproperlypositiononcenter the same. The operation; for replenishinw thesupplyct stock is the same 'as described. above:

It. is thus seen that. thespring 'aii ords" yielding means cooperatingwith the'pinsg cams and stops, to hold thePiXiOtil'llfyNIHOUIlted-armsin and out tot stocln eugaging;ppsi;-. tionand itnisunderstood that: the. invention:

is notlimited to any specific construction-1a andthat it maybe-carried'out in whole. or in part by means equivalenttothoseashowngwithout departing from the spirit of an xrin vention;

The screw -22is offset a distance-fromthe: longitudinal center lineoit:the:transverse memberG so thatwhen thestock holder 5"is innretracted.position the. spring 13 will-not: extend. over or so: closely approachthe screw 22 as to'interiere with adjustmentyof; said screw toohange theposition of the stock holder relative to the barrier..-

I claim;

1. A stool; holder comprising-1a;.menrber adaptedto be securedtoaprintingipress stock table; and horizontallyswinging. stock. engagingmeans pivot-ally .connectedito' said member;

it stock holder comprising member adapted 'to'be secured to aprizutingpress: stock table; horizontally swingingstocl;Lengaging means pivotallyconnected to said member: and resilient means to hold said stockengaging means in stock engaging; position.

3;. A stock holder comprising.- a anember adapted to be secured to aprintingapress stoclatable; stock engagingmeans pivotally connected tosaid memberand adapted tosengage one of the edges'of stock to beprinted; resilient means. to hold-said stock engaging means in stockengaging position; and auxiliary stock engaging meanspivotally'connected to said first mentionedstock en gaging means and adapted to-.engage the stock table and barrier therefor; ot astock" holdercomprising a member secured to said table; arms pivotally conn-ectedtosaid mem= her and normally extending toward said barrierpposts securedto the tree ends of said armsand adapted to hold stock against saidbarrier with a predeterminedpressure;

said arms being adapted to be moved away 7 from said barrier-to permitreplenishing the supply of stock; and stops adapted to position saidposts to engage the stock whereby said posts are caused to hold stockagainst the barrier with the same predetermined pressure.

- 6. A stock holder comprising a member adapted to be secured to aprinting press stock table; arms pivotally connected to said member;posts fixed to the free ends of said member; pins fixed to said armsnear the pivotal connection of said arms; resilient means connected tosaid pins; and stops on said member with which said pins are adapted toengage to position said posts to engage the stock.

7. A stock holder comprising a member adapted to be secured to aprinting press stock table; arms pivotally connected to said member;ridged or roughened posts fixed to the free ends of said member; pinsfixed to said arms near the pivotal connection of said arms; resilientmeans connected to said pins; and stops on said member with which saidpins are adapted to engage to position said posts to engage the stock.

8. A stock holder comprising a member adapted to be secured to aprinting press stock table; arms pivotally connected to said member;posts fixed to the free ends of said member; coil springs encirclingsaid posts; pins fixed to said arms near the piv otal connection of saidarms; resilient means connected to said pins; and stops on said memberwith which said pins are adapted to engage, to position said posts toengage the stock.

9. A stock holder comprising a member adapted to be secured to aprinting press stock table; stock engaging means pivotally connected tosaid member and adapted to engage one of the edges of stock to beprinted; and auxiliary stock engaging means pivotally connected to saidstock engaging means and adapted to engage the ends of said stock.

10. A stock holder comprising a member adapted to be secured to aprinting press; stock engaging means comprising arms pivotally connectedto said member; posts fixed to the free ends of said arms; and auxiliarystock engaging means comprising arms pivotally connected to said firstmentioned arms, and posts fixed to the arms of said auxiliary stockengaging means.

11. A stock holder comprising a member adapted to be secured to aprinting press stock table; stock engaging means comprising armspivotally connected to said member; corrugated posts fixed to the freeends of said arms; and auxiliary stock engaging means comprising armspivotally connected to said first mentioned arms, and posts fixed to thearms of said auxiliary stock engaging means.

' 12. A stock holder comprising a member adapted to be secured to aprinting press; stock engaging means comprising arms pivotally connectedto said member; posts fixed to the free ends of said arms; springsencircling and frictionally engaging said posts; auxiliary stockengaging means comprising arms pivotally connected to said firstmentioned arms, and posts fixed to the arms of said auxiliary stockengagingmeans.

13. In a stock holder comprising a barrier adapted for use with apneumatic feeder, pivoted arms provided with means to engage edges ofstock to hold the stock against the barrier, resilient means toyieldingly hold the arms in stock engaging position; and means to adjustthe arms toward and from the barrier.

14. In a stock holder comprising a barrier; a pivotally mounted armadapted to be swung into and out of position to hold stock against thebarrier; a pin on the arm; stops for the pin; and a spring adapted tocooperate with the pin to swing the pin from one side of the dead centerto the stop on the side of the dead center on which the pin may be, sothat the arm may be adjusted to predetermined position.

15. In a stock holder comprising a barrier; pivotally mounted armsadapted to be swung into and out of position to hold stock against thebarrier; pins on the arms; a pair of stops for each of the pins; therebeing recesses between the stops of each pair through which said pinsare movable, and a spring connecting the arms and adapted to cooperatewith the pins to swing either or both the pins from either side of thedead center'to the stop on the side of the dead center on which the pinmay be, so that either or both of the arms may be adjusted topredetermined position.

16. The combination with a table and a barrier, of a member having tworecesses and a pair of stops for each recess, said recesses having deadcenters respectively be tween the stops; arms pivotally mounted on thetable by pivots alined with the dead centers of the recesses; pins onthe arms to engage the stops and movable in said recesses; and a springconnecting the arms and adapted to be swung past the dead center of oneor both of the recesses, as one or both of the arms, as the case may be,is swung on its pivot.

17. In combination with a table and a barrier, two pivotally mountedarms adjustable toward and from the barrier and adapted to engage astack of stockto hold it against the barrier, yielding means to hold thearms positioned to hold the stock in barrier engaging position; andmeans to cooperate with said yielding means to hold the arms out ofstock engaging position.

18. The combination with a printing press stock table and a barriertherefor; of a stock holder comprising a member "adjustably secured tosaid table; arms connected to said member and normally extending towardsaid barrier, one of said arms being pivotally connected to said memberand adapted to be moved horizontally away from said barrier to permitreplenishing the supply of stock; posts extending upwardly from the freeends of said arms and adapted to hold stock against said barrier with apredetermined pressure; stop means to position said pivotally mountedarms in stock engaging position; and resilient means connected to saidpivotally mounted arm to normally hold said pivoted arm in stockengaging position.

19. The combination with a printing press stock table and a barriertherefor; of a stock holder comprising a member adjustably se cured tosaid table; arms connected to said member and normally extending towardsaid barrier, one of sald arms bemg pivotally connected to said memberand adapted to be moved away from said barrier to permit replenishingthe supply of stock; posts extending upwardly from the free ends of saidarms and adapted to engage one of the edges of stock to be printed andhold said stock against said barrier with a predetermined pressure; stopmeans to position said pivotally mounted arm in stock engaging position;resilient means connected to said pivotally mounted arm to normally holdsaid pivoted arm in stock engaging position; and auxiliary stockengaging means adjustably connected to said arms and adapted to engagethe ends of said stock.

In testimony whereof, I have hereunto set my hand at Los Angeles,California this 28th day of November, 1922.

CHARLES HUGH MARTIN.

Witness:

JAMES R. TOWNSEND.

